PP and YouAnd also stats.A nice addition is the ability to be your own move tutor, as well as NOT have to grind random Puppets for specific EV's, via PP! PP, or as I'm calling it, Power Points (Hey those are in the actual series!) give you access to a whole slew of extras. But instead of explaining it with words, let's show ya what I mean.

So, we want to select that 4th option to get into the PP menu. Inside there you'll see a few options, as well as your important number of PP left. In Echo!!'s case she has 32. That seems like a good bit.

Alright, so for now, let's see if she has anything to learn.

So she has a new move she can learn, for 20 PP, which is well within budget. After you learn it...

It gives you this screen. The bottom option in this case is pretty much "Hey put it here, you don't have a move available in this slot yet!" After you select it you'll see your PP take the 20 point hit, which that cost varies by move and power, and it will take you back to the move list screen.

So, the top option on the other hand, the EV Training option gives you this screen. I'm not good with this stuff as far as a technical standpoint, but I DO KNOW that adding points adds to your total, each point costs 1 PP, and after getting enough points in each stat those stats raise up. In Orelia's case I want her to have more Speed and Focus Attack, so let's put those there for explanation purposes.

As you can see it raises her Focus Attack and Speed slightly for just a few points worth. Speaking of stats though...

As you may notice, every stat has a letter next to it on your characters status screen. Each letter represents the IV of that stat. Each letter can be between E all the way up to S, with + and - sometimes being thrown in; S being the highest possible of course. You may also notice that one of the numbers are blue. That's related to...

That thing. What that is though, is a simplified Nature system. Instead of every stat having a positive/negative form for natures, now there are 5 natures that each give just a bonus to a single stat, with no penalty to others.
Red: Focus Attack
Blue: Focus Defense
Black: Spread Attack
White: Spread Defense
Green: Speed
Each of those are able to confer a small additional bonus on top of the IV/EV bonuses you have as well. As such, with that S in Focused Attack and the Red Nature, that character is going to be very useful as a Focused Sweeper!
Well, that's everything I can think of for now, and I'm very tired, it's 3AM. If there's anything else, please as I said in the first post, let me know. I'll be more than happy to add, as I know I missed SOMETHING in here somewhere. Good night for now.